Hiram j



Patented Feb. 21,1922;

H.J.YOUN G.

LOCK. APPL ICATION FILED'IJAN- s, 1919.

UNITED STATES PAT N orrice.

11mm J. YOUNG, 0F sYEAousE, NEW YORK,-IASSIG1\IOR ro THE 0. M. EDWARDScomm, me, or sYEAoUsE, NEw YORK, A conPoEATmN" OF NEW ORK.

LOCK.

To all whom it may concern:

Be it known that I, HIRAM J. YOUNG, a citizen of the United States, anda resident of Syracuse, in the county of Onondaga and State of New York,have invented a certain new anduseful Lock, of which the followingis aspecification.

. This invention has for itsobject a lock mechanism' especiallyapplicable for padlocks which is particularly simple in construction,economical in manufacture and highly e'flicient and durable in use;,andthe invention consistsin the novel features and in the combinations andconstructions hereinafter set forth and claimed. I

In describing this invention reference is had to the accompanyingdrawings in which like characters designate partsinall the views. I

Figure 1 is an elevation ofa padlock embodying one form o'f'myinvention, the front section of the casing being removed and the lockmechanism being shown in its operative position. 7

Figure 2 is aview similar to Fig. 1 showing the position of the lockmechanism after the shackle is opened.

Figure 3 is a view similar to Figure 1 showing the lock mechanism in anintermediate position occupied just after theshackle is releasedandbefore it springs to its open position. I

Figure 4 is a tumblers.

' Figure'5 is a'sectional view vation,'taken on line 5+5, Fig.

This lock comprises generally, a casing, a 'locln'ng member as a shackleand lock mechanism. mounted in the casing and coacting with the shackleto open the same detail view of one of the after the locking mechanismhas been open ated far enough to release the shackle. I

*1 designates the casing which may be of any suitable form, size andconstruction, it

being preferably composed ofbase and front sections 2, 2 which are heldtogether by p osts 3, 4:, 5, Sand 7 rising from the base section andwhich havereduced portions for entering corresponding holes in the topsec tion 2 these reduced portions having their heads riveted or spreadto form shoulders which prevent the removal of the front section 2". a D8 designates thev shacklewhlch is pivoted at one end on the post :7 andhas its other correspondingpartly in ele- Specification of LettersPatent. Patented Feb 21 1922' Application filed January 8, 1919. SerialNo. 270,117. I 1

end movable through a suitable opening 9 1n the casing to cooperate withthe lock mechanism. V

10 designates the tumblers of the lock mechanism. There may be anynumber of tumblers and in this embodiment of my invention I have-showntwo.

are spring pressed and are provided with means coacting with the shackleto .open the shackle after the tumblers have been-moved by the keyagainst the action'of the spring far enough to release the shackle.'Each tumbler as here shown is slidably mounted inthe casing and alsohas a slight pivotal movement to open the shackle after the tumbler .hasbeen moved ,rectilinea'rly .far enough to release the free en'd'of the,shackle.

As here shown, the tumblerincludes abody, 11 having a bearing 'as aslotor notch 12 on" The tumblersholds the tumblers in their operativeengagement with the shackle and also moves the shackle pivotally aboutthe post 4 to open the shackle after} being released from. the.tumblers. p; r p The tumbler-is formed with an upwardly extending part17 here shown as inthe form of a hook for interlocking with the notchedor hook shaped end 18 at the freeend ofthe shackle, and'thetumbler isalso shown .as formed with a depending arm 19e2'ztending' downwardlyfrom the body for engaging the bit of the key. The parts shackle tolatch into engagement with the tumblers. I i i The surface 15 atthe'pivoted end ofthe shackle,-has a cam or backed ofi portion 20 whichpermits the tumblers to have aforward pivotal movement after the shacklehas been released so that the ends offthe hook shaped parts 17' of thetumblers close the opening 9 when the lock is unlocked and also theshackle has a seat or notchp2l at v 17,18 areprovided' with curved faces17, 18Fwhichpe'rmitthe let the end of the surface '20 for receiving atooth or'corner 22 on the tumbler whereby after the" tumbler has beenmoved far enough to release the free end of the shackle,

the tooth 22 enters the notch 21 and causes the pivotal movement of thetumbler under the reaction of the spring to be transferred to theshackle and open the shackle.

23 is a ward, here shown as having a base plate 24; mounted between theposts 4:, 5 and held in position by said posts.

' The spring 16, as here shown is a coiled spring encircling the post 6and has arms 25,, 26 at its opposite ends, one of which as 25 pressesagainstthe casing and the other- 26 "against the tumblers.

The tumblers may be pressed from sheet metal and in order'to space thesame apart, are provided with marginal flanges 27 the edges of whichrest either upon the inner face'of the base plate 2 or on the upper faceof the adjacent tumbler. I

" In assembling the lock, the shackle 8 is placed upon the post 7, theward 23 between posts 4, 5, the spring 16 on the post 6, and thetumblers on the post 4 i "In operation during the unlockingo'f the lock,the bit of the key engages the portions 19 of the tumblers and causesthe tumblers to move *rect-ilinearly to the right, the tumblers beingguided in their movement on the its openposition, the tumblers duringthis movement moving into the position shown in Figure. 2. Duringclosing of the shackle thecam surface part 20 slightly moves thetumblers pivotally in a retrograde direction so that the curved surface18 on the shackle can engage the curved surfaces 17 on the tumbler and;cause the shackle to latch into interlocking engagement with thetumbler.

Vllhat I claim is: V v v 1. A look comprising a casing, a shackle andlock mechanism located within the easing comprising a shiftable tumblercomprising a single member having a part rigid therewith, means coactingwith the shackle to move the same into its open position when the lockmechanism has been operated to shift the tumbler and release theshackle, substantially as and for the purpose described. V

2. A lock comprising a casing, a shackle and lock mechanism within thecasing comprising 'a shiftable tumbler, the tumbler comprising a singlemember having a part rigid therewith, and means coacting with theshackle to move the same into its open position when'the lock mechanismhas been operated to shift the tumbler on its pivot to release theshackle, substantially as. and for the purpose specified.

'3. A lock comprising a casing a shackle pivoted at one end to thecasng, tumbler mounted to move pivotally and; rectilinearly in the casing,the tumbler being movable i into and out of interlocking engagement withthe free end of the shackle during its rectilinear movement andhavingmeanscoacting with the pivoted end of the shackle duringthe'pivot'al movement of said tumbler to move the shackle on its pivot,and a spring acting on the tumbler tending, to* press. the same to itslocked position, sub.-

stantially as and forthe purpose specified.

a. A look comprising a casing, a shackle.

pivoted at one end to the casing, a post located in the casing,a tumblermounted on,

the post and slidable crosswise thereof and also having a pivotalmovement relatively thereto, the. shackle having a seat on the edge ofits pivoted end and the tumbler hav mg an arm engaging said seat, and aspring acting on the tumblertendlng tov press'th'e same to its lockedpositionland to movethe" tumbler about its pivotal axis andpress said,arm against said seat, substantially as and for the purpose described. 7i 7 5.1%. lock comprising a casingfa shackle pivoted at one end to thecasing and having its other end movable into and out of the casing. anda tumbler mountedin the casing and including a body having an armcoacting with the lower edge face at the pivoted end of the shackle, aguide located in the casing andfengaging the body at a point remote fromthe pivoted end of the shackle, the tumbler being movable rectilinearlyand also pivotally relatively to the guide and'having a part extendingupwardly from the, body for interlocking with the free end of theshackle, and a key engaging arm extending downwardly from the body,substantially as and for the purpose set forth.

6. A look comprising a casing, a. shackle pivoted at one end to thecasing and having its free end movable into and out ofthe ca s: ing, theshackle having a cam surface at its pivoted end, a tumbler mounted.invthe cascoacting withthe cam face at the. pivoted end of the shackle,a guide located in the cas ing and engaging the body at apoint remotefrom the pivoted end of the shackle, the tumbler being movablerectilinearly and also pivotally relatively to the guide andh aving apart extending upwardly'trom the body for interlocking with the free endof the mg and including the body having fan arm shackle, and a keyengaging arm extending casing, the pivoted end of the shackle beingprovided with a cam portion, a'tumbler pivotally and slidably mounted inthe casing and having an arm engaging said cam portion at the pivotedend of the shackle and also having a part for interlocking withthe freeend of the shackle and a key engaging part, and a spring acting on thetumbler, Eubstantially as and for the purpose speci- 8. A lookcomprising a casing, a shackle pivoted at one end to the casing andhaving its other end movable into and out of the casing, the pivoted endbeing provided with a cam portion and a seat at one end of the camportion, a tumbler pivotally and slidably mounted in the casing andhaving an arm slidably engaging said cam portion at the pivoted end ofthe shackle and a tooth for engaging said seat, the tumbler also havinga part for interlocking with the free end of the shackle, and a keyengaging part, and a spring acting on the tumbler and tendin to move thesame to its locked position, su stantially as and for the purpose setforth.

9. A lock comprising a casing having a post therein, a shackle ivoted atone end to the casing and having 1ts other end movable into the casing,the shackle having a cam surface on the lower edge of its pivoted end,and a seat at the end of the cam surface, a tumbler mounted on the postand movable crosswise thereof and also pivotally movable about the post,the tumbler having an upper surface engaging said cam surface at;

the pivoted end of the shackle, and a shoulder for engaging said seat,and also having a part arranged to interlock with the free end of theshackle and a key engaging part, and

signed my name, at Syracuse, in the county: of Onondaga, and State ofNew York, this 21st day of December, 1918.

- HIRAM J. YOUNG.

